Ruling · Vasantotsava · 1920

Friday 5 March

Determinatein Chongqing, under the Rashtriya Panchang method. Clear of every threshold by 124 minutes.

Decide it for

29°34′ N 106°33′ E · Asia/Shanghai · GeoNames 1814906

The two sunrises

One ghaṭī is 24 minutes. The sunrise is read as upper limb, 31′ + 16′.

Sunrise of Friday 5 March

Taken. The only sunrise Pratipadā holds at.

07:16 sunrise
06:0406:2806:5207:1607:4008:0408:28

Holds at sunrise

Sunrise of Saturday 6 March

Pratipadā does not hold at sunrise. Not taken.

07:15 sunrise
06:0306:2706:5107:1507:3908:0308:27

Absent at sunrise

Pratipadā presentSunrise, the instant the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pratipadā runs from 05:12 on Fri 5 Mar to 04:24 on Sat 6 Mar.

    1920-03-04T21:12:12Z → 1920-03-05T20:23:58Z

  2. 02

    Kāla

    Sunrise is at 07:16 on the 5th and 07:15 on the 6th.

    sunrise: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be current at sunrise. It is on the 5th and is not on the 6th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105

  4. 04

    Tie-break

    Only one sunrise qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 7440 s

  5. 05

    Ruling

    Vasantotsava, Chongqing, 1920: Friday 5 March.

    confidence: determinate

Say it like this

In Chongqing, Vasantotsava 1920 falls on Friday 5 March. Pratipadā runs from 05:12 on Fri 5 Mar to 04:24 on Sat 6 Mar and is current at sunrise that day.

ahargana.org/chongqing/festivals/1920/vasantotsava · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 5 Mar
Ahargaṇa, classicalDisc centre, no refractionFri 5 Mar
compat-drikpanchangComparison profileFri 5 Mar
No institution has a recorded ruling for Chongqing.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/vasantotsava · ruleset 2026.3-draft

Month
Phālguna, amānta
Pakṣa · aṅga
Kṛṣṇa · Pratipadā
Kāla
Sunrise
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 105

“K 1 Vasantotsava (current at sunrise, if occurs on two successive days, it is to be observed on the first day).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePratipadāSunrise 4thCoveredSunrise 5thCoveredRuled
Los Angeles13:12 → 12:2406:18no06:17holds5 Mar
Chicago15:12 → 14:2406:21no06:20holds5 Mar
Jersey City16:12 → 15:2406:26no06:25holds5 Mar
Port of Spain17:12 → 16:2406:20no06:19holds5 Mar
London21:12 → 20:2406:40no06:38holds5 Mar
Durban23:12 → 22:2405:49no05:50holds5 Mar
Dubai01:12 → 00:2406:40no06:39holds5 Mar
Delhi02:42 → 01:5406:44no06:43holds5 Mar
Kolkata02:42 → 01:5405:56no05:55holds5 Mar
Singapore04:12 → 03:2406:14no06:14holds5 Mar
Sydney07:12 → 06:2405:45no05:46no6 Mar
Suva09:12 → 08:2406:06no06:06no6 Mar
Profile · tradition
pac-rp@2026.1 · smarta
Rule
vasantotsava@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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